Swivel connection



July 26,1927;

I P. MUELLER ET AL SWIVEL CONNECTION Original FledNov. 12, 1919 IIIIIIIIIIIII` llllllll i? j Patented July 26, 1927. f i,

UNITED STATES PATENT oEFicE.

:PHILIP MUEILER AND ANTON C. SCHUERMANN, OF DECATUR, ILLINOIS, AFSSIGNOBS TO ADOLPH MUELLER, TRUSTEE, OF DECAIUR, ILLINOIS.`

SWIVEL CONNECTION.

`rig'inal application filed November 12, 1919, Serial No. 337,492. Divided and this application filed June 12, 1924. Serial No. 719,555.

This invention relates to drinking fountains, and particularly to means for rotatably connecting the bubbler head to a sup ply pipe. so that Vcontinued rotary movement oiE the head relative to the pipe will not cause loosening of the locking member.

This case is a division, under official requirement, ofcopending application Ser. No. 337,492, filed November 12, 1919, which has matured into Patent No. 1,512,627, dated Oetober 21, 1924.

A primary object of the invention is to provide a connection between the supply pipe and the bubbler head, in which a washer is positively interlocked to the supply pipe,

so that the bubbler head may rotate independently of the washer and without danger of unsorewing the retaining nut from the In the drawings: Figure 1 is a vertical sectional view of a drinking fountain made in accordance with the invention.

Figure 2 is a sectional View taken substan tially along the line 2 2 of Figure 1.

Figure 3 is a sectional detail view of the parts disassembled.

Figure 4 is a vertical Sectional view show ing a modied form of the invention.

Referring to the drawings, in which like numerals indicate like parts in the several Niews, the bubbler head comprises a cup portion 10 having its upper end internally threaded for the reception of the hollow cap 11, and its lower end provided with the reduced neok 12, arranged to restupon the shoulder 18 formed on the nipple 14. The nipple 14 is internally threaded at its lower end So that it may be screwed into place on the end of the supply pipe (not shown), and the upper end or stem 15 of the nipple for a Substantial distance of its length is of reduced diameter', so as to permit the bubbler head to be rotatably mounted on the pipe.

The upper end of the reduced portion 15 is externally threaded, as at 16, so as to receive the internal threads of a locking nut 17, which locking nut lies within the large counter-bore 18 of the bubbler head, when the parts are properly assembled.

Immediately below the threaded portion 1G is a ring of vertical oorrugations or serrations 19, which are preferably of less length than the thickness of the washer or packing ring 20. The washer 20 is provided with a central opening having longitudinal oorrugations or serrations 21 which are equal in number and like in size to the corrugations 19 on the stem 15, S0 as to interlock therewith. A packing 22 of any suitable mate-rial surrounds the stem 15 and is inserted between the lower portionof the neck 12 and the washer 20.

Upon the upper surfaces of the retaining nut 17 are lugs 23, which are engaged by a suitable tool, such as a Spanner wrench, when it is desired to ,unscre'w the nut from its place from the nipple 15. It is, of course, understood that the lugs 23 may be replaced by a kerf or other means to permit ready removal of the nut.

In the embodiment of the invention disclosed in Figure 1, the washer 2O is of the same external diameter throughout its length, so that the entire washer may fit within the bore of the neck 12 with the upper edge of the washer substantially on the same level as the Shoulder 24.

In the modified form of the invention illustrated in Figure 4, the washer 25 is provided about its upper edge with the radially extending outer flange 26, the external diameter of the flange being substantially equal to the internal diameter of the counterbore 18, so that the under surface of the flange may rest upon the Shoulder 24. Otherwise, this form of the invention is substantially Similar to that shown in Figure 1.

In order to prevent the nut 17 from being brought into frictional engagement with the sides oi' the` bubbler head, the diameter of the nut is slightly less than the internal diameter of the counter-bore 18, so as to provide a clearance between the nut and the bubbler head.

It will be seen that by reason of the washer 2O being positively interlocked with the stem 15, that the bubbler head will be permitted to rotate freely about the nipple 14 without danger of the screw 17 becoming loose, due to the rotation of the bubbler head.

Obviously, the form of the invention herewith shown and described is merely illustrative and in no sense restrictive, and such changes as come Within the purview of one skilled iii the art may be made without departing from the spirit of the invention and the scope o'f the appended claims.

We claim:

l'illTlie'feoiiihinatin of a relatively sta' tionary member, a revoluble member mounted on said stationary member, a retaining nut threaded to said stationary member, and nnon-iotatable means, inter-locked with said l0 "stationary*member 4directly beneath said'nut to prevent turning Contact of the revoluble `member.with the nut. 2.QTheA-veonibination of a relatively sta tionary member, a i'evoluble member mount- 15eden, said stationary member, al retaining nvutthreaded Vto saidstationary member, a `no,n-,rotatapble washer between said nut and ,the lower end-of said revoluble member, and fmeanson saidivasher eoaeting with comple- 2O iiieiitarymeans on said stationary member for positively preventing turning contact of the revoluble member with the nut.

1T 4$3. Infeoinbination, av relatively stationary `member having a threaded end and a ser- 35wrated' portion, fa i'evoluble member mounted onsaid stationary member below said serset our hands.

vmember to prevent turning eontaet'of the revoluble member `with `the retainingr nut while permitting the revoluble member to be freely rotatable on the Stationary member.

4. In combination, arelatively Stationary member having a reduced portion provided with serrations and a threaded end, a inember'revolubly mounted on said reduced portion, a retaining nut threaded tothe end of lthe stationary member, and a washer havingserrations on its inner surface adapted to interlock with the serrations on the stai tionary member to prevent turning contact .of the revoluble member with the retaining nut while permitting the revoluble member to be freely rotatable on the stationary member. i

In testimony whereof we have PHILIP MELLER. ANTON o. SCHUERMANN.

hereunto 

